Cylindrical storage tank



FIG. 1 is a front, right side perspective view of a cylindrical storagetank showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear elevational viewbeing a mirror image;

FIG. 4 is a right side elevational view, the left side elevational viewbeing a mirror image; and,

FIG. 5 is a bottom plan view thereof.

The ornamental design for a cylindrical storage tank, as shown anddescribed.